food Doha (QR/kg) Beijing(QR/kg)
tomato: 5~15 0.5~2
banana: ~2 0.8~1.2
food in restraurant: 2 2~5
ratio of CNY : QR = 1 : 2.1
salary of China : Qatar = 1 : 2.5
servant cost per hour in Beijing : Doha= 2~4 : above 20
later for more:)

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